建筑钢结构进展2024，Vol.26Issue(4)：77-87,11.DOI:10.13969/j.cnki.cn31-1893.2024.04.009
T形PEC柱抗震性能的数值模拟分析
Numerical Simulation Analysis on Seismic Performance of T-shaped Partially Encased Composite Columns
李媛萍 1刘谋雷2
作者信息
- 1. 暨南大学力学与建筑工程学院,广州 510632||暨南大学"重大工程灾害与控制"教育部重点实验室,广州 510632
- 2. 暨南大学力学与建筑工程学院,广州 510632
- 折叠
摘要
Abstract
The seismic performance of 14 T-shaped partially encased composite(PEC)columns under cyclic horizontal loads was simulated using ABAQUS software.The results show that the hysteresis curve of the T-shaped PEC column is a full parallelogram,and the column exhibits consistent stiffness degradation as well as good energy dissipation capacity and ductility.Raising the strength grade of concrete can increase the initial stiffness of the column,but going too high will decrease the ductility,hasten the stiffness degradation,and degrade the seismic performance of the column.Welding the transverse links in the x and z directions helps to confine the concrete and improve the seismic performance of the column.However,the link spacing should not be larger than 150 mm.A vertical bar set at the inner corner of the T-shaped PEC column and bonded to the transverse links to form a steel cage can significantly improve the seismic performance of the column.关键词
T形PEC柱/滞回性能/刚度退化/耗能能力/延性Key words
T-shaped PEC column/hysteretic behavior/stiffness degradation/energy dissipation capacity/ductility分类
建筑与水利引用本文复制引用
李媛萍,刘谋雷..T形PEC柱抗震性能的数值模拟分析[J].建筑钢结构进展,2024,26(4):77-87,11.
